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drm: Set the relevant infoframe field when scanning out a 3D mode 

When scanning out a 3D mode on HDMI, we need to send an HDMI infoframe
with the corresponding layout to the sink.

v2: Make s3d_structure_from_display_mode() less subtle (Ville Syrjälä)

Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
Acked-by: Dave Airlie <airlied@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
hifive-unleashed-5.1
Damien Lespiau 2013-09-25 16:45:26 +01:00 committed by Daniel Vetter
parent a3ff6d5609
commit 4eed4a0a4a
1 changed files with 38 additions and 2 deletions
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40
drivers/gpu/drm/drm_edid.c
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@ -3421,6 +3421,33 @@ drm_hdmi_avi_infoframe_from_display_mode(struct hdmi_avi_infoframe *frame,
}
EXPORT_SYMBOL(drm_hdmi_avi_infoframe_from_display_mode);
static enum hdmi_3d_structure
s3d_structure_from_display_mode(const struct drm_display_mode *mode)
{
u32 layout = mode->flags & DRM_MODE_FLAG_3D_MASK;
switch (layout) {
case DRM_MODE_FLAG_3D_FRAME_PACKING:
return HDMI_3D_STRUCTURE_FRAME_PACKING;
case DRM_MODE_FLAG_3D_FIELD_ALTERNATIVE:
return HDMI_3D_STRUCTURE_FIELD_ALTERNATIVE;
case DRM_MODE_FLAG_3D_LINE_ALTERNATIVE:
return HDMI_3D_STRUCTURE_LINE_ALTERNATIVE;
case DRM_MODE_FLAG_3D_SIDE_BY_SIDE_FULL:
return HDMI_3D_STRUCTURE_SIDE_BY_SIDE_FULL;
case DRM_MODE_FLAG_3D_L_DEPTH:
return HDMI_3D_STRUCTURE_L_DEPTH;
case DRM_MODE_FLAG_3D_L_DEPTH_GFX_GFX_DEPTH:
return HDMI_3D_STRUCTURE_L_DEPTH_GFX_GFX_DEPTH;
case DRM_MODE_FLAG_3D_TOP_AND_BOTTOM:
return HDMI_3D_STRUCTURE_TOP_AND_BOTTOM;
case DRM_MODE_FLAG_3D_SIDE_BY_SIDE_HALF:
return HDMI_3D_STRUCTURE_SIDE_BY_SIDE_HALF;
default:
return HDMI_3D_STRUCTURE_INVALID;
}
}
/**
* drm_hdmi_vendor_infoframe_from_display_mode() - fill an HDMI infoframe with
* data from a DRM display mode
@ -3438,20 +3465,29 @@ drm_hdmi_vendor_infoframe_from_display_mode(struct hdmi_vendor_infoframe *frame,
const struct drm_display_mode *mode)
{
int err;
u32 s3d_flags;
u8 vic;
if (!frame || !mode)
return -EINVAL;
vic = drm_match_hdmi_mode(mode);
if (!vic)
s3d_flags = mode->flags & DRM_MODE_FLAG_3D_MASK;
if (!vic && !s3d_flags)
return -EINVAL;
if (vic && s3d_flags)
return -EINVAL;
err = hdmi_vendor_infoframe_init(frame);
if (err < 0)
return err;
frame->vic = vic;
if (vic)
frame->vic = vic;
else
frame->s3d_struct = s3d_structure_from_display_mode(mode);
return 0;
}